Though an Austrailian publication, the following has very good and detailed information with many references from our well know veterinarians in the U.S.: http://www.flockandherd.net.au/other/reader/diseases-of-alpacas.html

The above publication references this website, which also has great info: http://criagenesis.cc/

No representation is made as to the accuracy or advisability of following recommendations made above; however, we have found this information to be helpful in our pursuit.